Air conditioning, heating, and cooling units



Jan. 5, 1937. yd 2,066,817

AIR CONDITIONING, HEATING, AND COOLING UNITS Fi led March 9', 1935 s Sheets-Sheet 1 mm. y 05 attorney Jafi. 5, 1937.

F. M. YOUNG.

AIR CONDITIONING, HEATING, AND COOLING UNITS Filed March 9, 1935 3 Sheets-Sheet 2 IIIIII!llllllllllllili'lflll' lflllll Fig.4

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am meg Jan. 5, 1937. F. M. YOUNG 2,066,817

AIR CONDITIONING, HEATING, AND COOLING UNITS Inventor I I 13. I I W ,F'Lq. I 2 .63

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attain Am connrrionmc, meme, min cooilme nurrs Fred M. Young, Racine, Wia, assignor to hem Radiator Company, Racine, Wis.

Application March 9, 1935, Serial No. ltmtli 3 Claims. (@l. 25'i-4i37i The invention relates ,to new and useful improvements in a unitary means for room heat- 'ing, cooling and air conditioning for'human comfort, the devicebeing adapted to be located in g any desirable position in the room and act to condition the air passed therethrough in an advantageous manner.

An object of my inventionis to provide a novel housing having means whereby the front panel 1o may be easily removed to thereby provide means i'or conveniently attaching and detaching the operating units and make them easily accessible.

A further object is toprovide means whereby the airmay be discharged fan like, to thereby w spread the air so discharged over a wide area as it passes into and across the upper portion of the room, thus to cause all of the air in the roomto be moved and returned to the unit, and to preventair pockets or eddy currents.

"20 Another object is to suitably position a temperature transfer core in the housing, having means whereby when'operating duringmoderate outside temperatures, the air, passingtherethrough, will all be equally aifected and the heatpartition pan and support them thereby, thus to provide a simple, efflcient and low cost air circulating means. g

And further, an object is'to provide a simple andlight unit that-may if desired, be easily and 'detachably mounted on the wall of the room served and to'provide a simple detachable mounting'for the heating "or cooling core whereby it i may be easily removed and replaced.

To thesev and other useful endsmy invention 45 consists .in matterjhereinafter set forth and claimed and shown in the accompanying draw ingsinwhich: Figure 1 is a front sectional elevation of the device taken on line. l--l of Figure 3.

my Figure? is a top plan view of the'housing cover.

Figure '3 is a side elevation 01' the device shown in Figure L'take'n on line 3-3 oi Figure 1.

Figure 4is a top view of the transverse pertition or pan which acts 'asa motor, Ian and elimlnatorsupport.

as at a, moon Figure 5 is a transverse, fractional, sectional view of the pan and eliminator taken on line 5-5 of Figure 3.. 7

Figure 6 is a fractional section of the pan and eliminator taken on line t-t of- Figure 1. a Figure 7 is a vertical transverse section of the a housing cover and its grille taken on line 1-1 of Figure 2. p I

Figure 8 is a front elevation of the housing less the top cover, detachable front panel, core,

motor and fans.

r Figure 9 is aside elevation oi the'housing as shown in Figure 8.

Figure 10 is an enlarged fractional section taken on. line lt-it of Figure 9, including a 1g fraction of the front panel.

Figure 11 is a fractional rear view of the housing supporting strip. I

Figure 121s an end view of the supporting strip.

Figure 13 is a diagrammatic illustration of amodification.

As thus illustrated the reference character A designates the core in its entirety, B designates the motor, C-C designate the blower fans and D-D designate, in their entirety, the moisture 5 v eiiminators.

Reference numeral designates the rear panel of the housing and 2-2 the side panels, each having inwardly turned portions t-t. Portions t are bent as at t (see Figure 10) forming narrow strips t, having inwardly turned flanges t-G.

. The openingleft between strips 5 is supplied with a panel 1. This panel is bent on each side g flanges a, each of which is adapted torest on portionst 'wherebymember l is held on the same planeas members 3; thus when panel]? is in position, a complete vertical, rectangular chamber is provided. i

I provide threaded nuts l2 which are suitably.

- positioned and spot welded in spaced apart rela- 40 tion on members 6. v Registering openings are provided in members 6 and registering openings 7 are provided in panel I for screws 13 whereby the panel I may be securely but removably attached to the body of the housing. I provide a top cover l5 for the housing, having suitable overhangin fiangesjand preferably three air outlet openings as clearly shown in Figures 2 and 7. I provide novel grilles for these-openings,

v the center sections of which are provided withclosely spaced, narrow, transverse strips l6, preferably positioned as shown in Figure '7, to thereby direct the, air vertically, The end openings are provided with grilleswhose strips I'I are likewise transversely positioned ahd closely spaced as in- 5 dicated. These strips I! are, however, preferably positioned at diverging angles to thereby direct the air current outwardly, as indicated by arrows in Figure 7.

Thus it will be seen that the circulated air will be discharged fan like. It will therefore spread and move outwardly toward the opposite side of the room and downwardly and turn back at and near the floor and re-enter the cabinet at its bottom as at I8.

Clearly there will be a soft movement of air through the room, imperceptible to the occupants but the movement will be complete so there is a frequent and complete change of air over the entire area of the room. Obviously, one of my cabinets will serve perfectly a medium sized room. For larger rooms two or more cabinets may be suitably positioned in the room. I may obviously, position the air outlet and grilles at a transverse angle in the lid or in the front of the cabinet, thereby to discharge the air into the room but in some other direction than shown in the drawings. I may also elect to provide vertically positioned risers through which to convey the air a distance above the cabinet.

Clearly my cabinet may be provided with supporting feet. I prefer, however, to mount the cabinet at a proper height on the wall. For this purpose I provide two spaced apart U shaped vertically positioned strips having outwardly projecting flanges 2l-2|, which are spot welded to the rear panel of the housing.

These strips are provided with a suitable number of orifices 22 and upwardly extending narrow slits 23. Thus suitably spaced screws or lag bolts may be placed in the wall so the heads will register with openings 22 whereby when the screw heads enter the openings and the cabinet is lowcred, the slits will embrace the body of the screws and the cabinet will be securely held into position.

Thus I have described my cabinet and its cover lid and grilles whereby, when air is discharged, it will circulate in a manner which insures maximum comfort for the occupants in the room served.

I provide means in the cabinet for circulating air therethrough and conditioning this air as follows:

The core A comprises preferably four rows of tubes each row having four tubes. The tubesof each row are connected in series by means of loops 32 and the rows are serially connected by means of loops 33, whereby the heating or cooling medium has a single tube passage through the core, the inlet tube having a connection to the open end of the top row of tubes as at 3! therefore .the operation will be on the counter flow principle, viz., the heating or cooling medium will enter the top row of tubes and pass downward through each succeeding row of tubes and the air enters the core at the bottom and is discharged from the top row of tubes. The outlet end of the bottom row of tubes is connected to the outlet tube 35 as at 3B. Thus it will be seen that the cooling or heating medium may enter and pass through each transverse row of tubes sinuously.

The tubes are supplied with a multiplicity of closely spaced fins 38, thus providing an efllcient A U shaped bracket 45, made from sheet steel,

is, at its base, attached to the side members 2 of the housing, as shown in Figure 1. Members rest upon and are detach-ably made fast to the upper flanges of members 45, the lower flanges acting as supports for pan 50 which in turn, cooperating with the lower flanges, act as a partition, separating the-housing into two compartments. This pan, at its ends, is detachably secured to the lower flanges of members as clearly indicated in Figure 1.

I provide an electric motor B having extended shaft ends upon which the rotors (not shown) of fans C are mounted; this motor is secured to the under side of pan as indicated in Figure 1, the connection being formed preferably by means of four bolts 5|, through suitable steel and rubber washers 52 and suitable nuts, thus to seal against leakage and to muiile any sound that may be caused by the action of the motor.

The fan housings are secured to the under side of the pan 50 as indicated in Figures 1 and 3, the pan having registering openings with the air outlet of the fan. These openings are designated by reference characters 53-53 and are surrounded on three sides by angle irons 54 and 55. The vertical flanges of angles 54 join the pan sides as at 56, so as to form a vertical air.

passageway, the walls of which are about one half the depth of the pan (see Figure 5). It will be noted that there is left a space between the angle.iron 55 and the front wall of the pan as at 51 (see Figures 3 and 6) thus the remaining bottom of the pan is open for the flow of the condensate.

It will be seen that the upper flanges of brackets 45 and members 39 and 40 form an airlock between the ends of the core A and the housing walls whereby air cannot pass through the cabinet except through openings between the fins 38 of the core and between the end fins and header plates 39. The lower flanges of brackets 45 also act to formfan air lock between the ends of the pan and the housing. It will also be seen that the pan ends extend a short distance under members 40; thus condensate that may be formed outside the plates 39, may drop into the pan through openings 4|. I provide upturned flanges on the ends of members 40 to form a collecting trench for such condensate.

Between one of the channels 55 and the pan wall, I preferably provide an under hanging trough designated by numeral 58 (see Figures 1 and 6). A registering opening may be made in the pan bottom or the pan bottom may extend over this trough, having one or more openings whereby they condensate may drain into the trough.

I provide a flanged bracket 59 providing a con necting means for drain pipe 60. This pipe may be arranged for drainage in any suitable manner or a valve may be provided whereby the condensate may be permitted to accumulate in the trough 58 and drain at intermittent periods.

I provide eliminators as follows: Plates 65 are positioned transversely over openings 53, the bottoms resting on the upper edge of angles 55 and the ends, at their lower sides, being bent at right angle and secured to the pan sides by bonding, the upper portion of this joint stopping short of the pan top, thus to prevent any condensate from flowing from plate 65 over the edge of the pan. These plates are spaced apart a suitable distance and positioned at an angle as illustratedin, Figures 1 and 5, thus to overlap vertically whereby 7 drippings may not fall from core A into open- .ings 53.

At the bottom edge of plates 65 I provide an upwardly folded edge 66 (see Figure 5), thus forming a trench which is closed at the rear end and left open at the other end as at 61, thus to direct the condensate into the pan at 51. The trench formed by upturned edges 66 is positioned at an angle to the pan as indicated in Figure 6. Thus it will be seen that the condensate will drop on plates 65 and flow into these trenches and then into the pan from whence it will flow to trough 58.

When the motor is in operation the air will pass into the bottom of the cabinet at l8, thence into the fans as indicated by arrows, thence through openings'53 and between the plates 65, to and through the core A and through the grilles as further indicated by arrows. Obviously the drippings will either fall in the pan or be directed thereto by the eliminators and the circulated air will be heated or cooled, depending upon the medium forced through the tubes of core A. I contemplate using. the design shown for cooling by a refrigerant or brine and for heating by means of heated water. Obviously other forms of cores may be supplied to accommodate the various mediums to be passed therethrough.

By removing panel I, all of the units will be in view and if desired, the core, motor or fans may be easily removed or the pan and all parts attached thereto removed intact. It will be noted that the lid l5 may also be easily removed and replaced.

Referring now to Figure 13. This design, other than the fan and motor may be exactly like the design shown in the other figures. The design and position of the fan and motor being particularly suited for small, low cost units or square or circular housing units having a single fan and eliminator.

Referring to the various figures, it will be noted that I provide a temperature insulator 10 for the inner surface of a portion of the cabinet beginning preferably at the top of the pan and extending to the top of the housing This insulating material is made into slabs and suitably shaped so it may be easily attached to members I, 2, 3 and 1, before the detachable parts have been assembled into the housing.

Thus it will be seen that I have provided a simple, inexpensive and economical heating or cooling unit, easily assembled, installed or inspected and that the temperature transfer is by counter flow, thus to provide maximum efliciency.

Having thus shown and described the preferred form of my invention, I claim:

1. An air conditioner, comprising a vertically positioned cabinet having a rectangular shape in cross section, the front panel of said cabinet beingremovably attached, unitary U shaped sheet steel brackets attached to the side walls of said cabinet the end flanges projecting inwardly, a cooling core having outwardly projecting header plate flanges adapted to rest on the upper flanges of said brackets and be removably attached thereto,

said supporting and header plate flanges adapted to prevent the passage of air between said side walls and said core, a motor and fan supporting partition wall adapted torest on the lower in-' wardly projecting flanges ,of said brackets, an. opening in said partition wall registering with the discharge opening of said fan, an air inlet at the bottom of said cabinet and an air outlet at the top thereof whereby air may be circulated from said inlet through said partition opening and through said core. v

2. An air conditioner of the class described,

comprising a vertically positioned cabinet having.

a rectangular shape in cross section, the front panel of said cabinet being removably attached, upper brackets on each end wall of said cabinet, lower inwardly projecting brackets on each end wall of said cabinet, a cooling core having header plates supported by said upper brackets and cooperating therewith to prevent the passage of air except between the tubes of said core, a liquid tight pan supported by said lower'brackets, a motor supported from the bottom side of said pan, air propelling fans supported by said pan and positioned on opposite sides of said motor and operatively connected thereto, said fans having air outlets through and extending a distance above the bottom of said pan, eliminators positioned above said air outlets having means whereby the condensed moisture caught will drain by gravity into said pan.

3. A device of the class described, comprising a vertically positioned housing having an air inlet at its bottom and an air outlet at the top thereof, a cooling core adjacent said air outlet having supporting means adapted to cooperate with the header plates of said core and act as an airlock between the walls of said housing and the finned surface of said core, a partition between said air inlet and said core comprising a liquid tight pan and supporting brackets, said brackets attached to the walls of said housing, a fan motor supported by said pan from the under side thereof, an air outlet for said fan extending through and a distance above the bottom of said pan, eliminators positioned above said air outlet having means whereby condensed moisture caught will be drained by gravity into said pan.

' FRED M. YOUNG. 

